ピントを()わせる

ぴんとをあわせる
expression
to focus (a camera/lens); to bring into focus
1. to focus (a camera or lens); to bring into focus
To adjust a camera lens or similar optical device so that the image is sharp and clear. Can also be used figuratively to mean focusing one's attention or discussion on a specific point.
カメラのピントを()わせる。
I focus the camera.
被写体(ひしゃたい)にピントを()わせてからシャッターを()った。
I focused on the subject and then pressed the shutter.
(くら)場所(ばしょ)ではピントを()わせるのが(むずか)しいので、マニュアルフォーカスに()()えた。
It's hard to focus in dark places, so I switched to manual focus.

USAGE:
ピント comes from the Dutch word "brandpunt" (focal point). The expression uses を()わせる (to adjust, to match). When the focus is off, the opposite expression is ピントがずれる (to be out of focus), which is also commonly used figuratively for missing the point in conversation.

COMMON PATTERNS:

  • ~にピントを()わせる (to focus on ~)
  • ピントが()う (to be in focus — intransitive)
  • ピントがずれる (to be out of focus)
  • ピントが()わない (unable to focus; out of focus)

SIMILAR WORDS:
フォーカスを()わせる is a more modern synonym using the English loanword "focus." 焦点(しょうてん)()わせる is a more formal equivalent.